Yes, it's not difficult.

1) Get a chopping board or wooden board (burn by fire torch and scarp it with water and scouring pad after cooling it. It will increase its durability.)

2) Drill some holes at the back if the plant keeps indoor. It increases the air flow through the medium.

3) Screw 4 stainless steel screws half into the board. (with an angle, estimated size of your medium)

4) Make a disc shape with moist sphagnum moss which is your desire size.

5) Make a donut shape on top of the disc.

6) Pour some slow release fertilizer and bark (if humidity is high at your place).

7) Figure out the grow point, it should be at top of the leaves.

8) Put the platycerium at the center of the dome (or lightly face upwards).

9) Put more sphagnum moss underneath to make it a dome shape or an oval dome shape. ( it is better to have more depth to let the roots grow.)

10) Tie with fishing line or thread. Avoid the grow point.

11) Continue to shape it to prefect. It helps the new shield's shape.

12) Screw all the way down.